Kinetic Molecular Theory

Solids are described as having a _____________.

• definite shape and definite volume

• no definite shape but definite volume

• definite shape but no definite volume

• neither definite shape nor definite volume

Gas particles move around at __________ speeds.

• low

• moderate

• high

• very low

Which of the following is an assumption of the kinetic-molecular theory of gases? The temperature of a gas depends on the average kinetic energy of the gas particles.

• True

• False

• The volume of a gas is negligible compared to the volume of its container.

• Gas particles do not attract or repel each other.

What is the state of matter with indefinite shape and definite volume?

• Solid

• Liquid

• Gas

• Plasma

What is the difference between solids, liquids, and gases in terms of particle movement?

• Solids have fixed positions, liquids flow, and gases move freely.

• Solids flow, liquids have fixed positions, and gases are rigid.

• Solids and liquids move freely, while gases are fixed in position.

• All three states have particles that move randomly.

Kinetic refers to _____________.

• Energy

• Force

• Motion

• Mass

Adding thermal energy to matter causes its particles to _____________.

• move faster

• move slower

• remain stationary

• change shape

Describe the arrangement of particles in a solid.

• Particles are loosely arranged and can move freely.

• Particles are closely packed in a fixed position.

• Particles are arranged randomly and can flow.

• Particles are far apart and move independently.

What is the main focus of the kinetic molecular theory?

• The behavior of gas particles in terms of motion and energy.

• The chemical reactions of gases under pressure.

• The temperature changes in solid materials.

• The interaction between liquids and gases.

What is the primary assumption about gas particle collisions in kinetic molecular theory?

• Collisions are elastic.

• Collisions are inelastic.

• Collisions result in energy loss.

• Collisions are perfectly inelastic.